My phone sometimes does that... Try taking the battery out and then tunring back on. Do you have a case on your phone? Sometimes the case will cause the touch screen to stop functioning. A few hard cases I bought for my Dare did that. If it does not work, then yes.... take your phone in and talk to Verizon.... sometimes it has bad firmware or software and they will just replace it! Good luck!

First off I would like to say.. High... lol I just had the same problem with my LG dare lol and I just got the phone yesterday cause my HTC Droid Thunderbolt got stolen (which I dont know why cause its badly cracked on the front) so I got the dare off some website yesterday, so Im a little ticked lol but I figured it out, TAKE THE BATTERY OUT.. that worked for me